[rhmessaging-commits] rhmessaging commits: r2544 - in mgmt/trunk: etc and 3 other directories.

[rhmessaging-commits at lists.jboss.org]

Author: justi9
Date: 2008-09-25 15:42:18 -0400 (Thu, 25 Sep 2008)
New Revision: 2544

Added:
   mgmt/trunk/parsley/
   mgmt/trunk/parsley/python/
   mgmt/trunk/parsley/python/parsley/
   mgmt/trunk/parsley/python/parsley/__init__.py
   mgmt/trunk/parsley/python/parsley/command.py
Modified:
   mgmt/trunk/etc/devel.profile
   mgmt/trunk/etc/devel.profile.tcsh
Log:
Introduces the parsley project, for utility code used across the spicy
projects.  We're starting with some common code for creating the cumin
(and soon, mint) clis.



Modified: mgmt/trunk/etc/devel.profile
===================================================================
--- mgmt/trunk/etc/devel.profile	2008-09-25 15:26:14 UTC (rev 2543)
+++ mgmt/trunk/etc/devel.profile	2008-09-25 19:42:18 UTC (rev 2544)
@@ -1,5 +1,5 @@
 export DEVEL_HOME="$PWD"
-export DEVEL_MODULES="basil mint cumin"
+export DEVEL_MODULES="mint cumin basil parsley"
 
 # PYTHONPATH
 

Modified: mgmt/trunk/etc/devel.profile.tcsh
===================================================================
--- mgmt/trunk/etc/devel.profile.tcsh	2008-09-25 15:26:14 UTC (rev 2543)
+++ mgmt/trunk/etc/devel.profile.tcsh	2008-09-25 19:42:18 UTC (rev 2544)
@@ -1,5 +1,5 @@
 setenv DEVEL_HOME "$PWD"
-set DEVEL_MODULES=(mint cumin)
+set DEVEL_MODULES=(mint cumin basil parsley)
 
 # PYTHONPATH
 

Added: mgmt/trunk/parsley/python/parsley/__init__.py
===================================================================

Added: mgmt/trunk/parsley/python/parsley/command.py
===================================================================
--- mgmt/trunk/parsley/python/parsley/command.py	                        (rev 0)
+++ mgmt/trunk/parsley/python/parsley/command.py	2008-09-25 19:42:18 UTC (rev 2544)
@@ -0,0 +1,160 @@
+class Command(object):
+    def __init__(self, parent, name):
+        self.parent = parent
+        self.name = name
+        self.aliases = ()
+        self.arguments = ()
+        self.description = None
+
+        self.options = list()
+        self.options_by_param = dict()
+
+        self.commands = list()
+        self.commands_by_name = dict()
+
+        if self.parent:
+            self.parent.commands.append(self)
+            self.parent.commands_by_name[self.name] = self
+
+    def init(self):
+        if self.parent:
+            for alias in self.aliases:
+                self.parent.commands_by_name[alias] = self
+
+        for option in self.options:
+            option.init()
+
+        for command in self.commands:
+            command.init()
+
+    def parse_options(self, argv):
+        opts = dict()
+        opt = None
+        remaining = list()
+
+        def find_opt(key):
+            try:
+                opt = self.options_by_param[key]
+                opts[opt.name] = None
+                return opt
+            except KeyError:
+                msg = "Option '%s' is unrecognized" % key
+                raise CommandException(self, msg)
+
+        for i, arg in enumerate(argv):
+            if arg.startswith("--"):
+                opt = find_opt(arg[2:])
+            elif arg.startswith("-"):
+                opt = find_opt(arg[1])
+            elif opt:
+                if opt.argument:
+                    opts[opt.name] = opt.unmarshal(arg)
+                    opt = None
+                else:
+                    remaining = argv[i:]
+                    break
+            else:
+                remaining = argv[i:]
+                break
+
+        return opts, remaining
+
+    def parse(self, argv):
+        opts = dict()
+        args = list()
+        opt = None
+
+        def find_opt(key):
+            try:
+                opt = self.options_by_param[key]
+                opts[opt.name] = None
+                return opt
+            except KeyError:
+                msg = "Option '%s' is unrecognized" % key
+                raise CommandException(self, msg)
+
+        for arg in argv:
+            if arg.startswith("--"):
+                opt = find_opt(arg[2:])
+            elif arg.startswith("-"):
+                opt = find_opt(arg[1])
+            elif opt:
+                if opt.argument:
+                    opts[opt.name] = opt.unmarshal(arg)
+                    opt = None
+                else:
+                    args.append(arg)
+            else:
+                args.append(arg)
+
+        return opts, args
+
+    def print_help(self):
+        usage = list()
+
+        if self.parent:
+            usage.append(self.parent.name)
+
+        usage.append(self.name)
+
+        if self.options:
+            usage.append("[OPTIONS]")
+
+        if self.commands:
+            usage.append("COMMAND")
+        elif self.arguments:
+            usage.extend(self.arguments)
+
+        print "Usage: %s" % " ".join(usage)
+
+        if self.description:
+            print "Description: %s" % self.description
+
+        if self.options:
+            print "Options:"
+
+            for opt in self.options:
+                osummary = "--%s" % opt.name
+
+                if opt.char:
+                    osummary = osummary + " (-%s)" % opt.char
+
+                if opt.argument:
+                    osummary = osummary + " " + opt.argument
+
+                print "  %-30s  %s" % (osummary, opt.description)
+
+        if self.commands:
+            print "Commands:"
+
+            for command in self.commands:
+                if command.aliases:
+                    names = "%s (%s)" % (command.name, ", ".join(command.aliases))
+                else:
+                    names = command.name
+
+                print "  %-30s  %s" % (names, command.description)
+
+class CommandOption(object):
+    def __init__(self, command, name, char=None):
+        self.command = command
+        self.name = name
+        self.char = char
+        self.argument = None
+        self.description = None
+        self.type = str
+
+        self.command.options.append(self)
+        self.command.options_by_param[self.name] = self
+
+    def init(self):
+        if self.char:
+            self.command.options_by_param[self.char] = self
+
+    def unmarshal(self, value):
+        return self.type(value)
+
+class CommandException(Exception):
+    def __init__(self, command, message):
+        self.command = command
+        self.message = message